Company lists · Data refreshed September 2026

Top 18 Sales development representatives based in the United Kingdom

RevenueBase identified 48 sales development representatives headquartered in the United Kingdom as of September 2026 and tracks 800 professional contacts across them, including 252 with verified work emails. London is the largest hub.

This list covers sales development representatives headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
48Companies
800Contacts tracked
252Verified emails
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The 18 largest sales development representatives based in the United Kingdom

Ranked by team size
Top 18 of 48 sales development representatives based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sales development representatives: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceLondon, United KingdomHQ checked Sep 22, 202651-200205 contacts →

Strong evidence

“EngageTech is the leading sales development partner for complex B2B technology companies operating in multi-stakeholder, enterprise sales environments.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceExeter, United KingdomHQ checked Sep 22, 202651-200116 contacts →

Partial evidence

“Since 2016, Air Marketing has been the trusted outsourced sales and lead generation agency in the UK for ambitious B2B businesses.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceNewcastle Upon Tyne, United KingdomHQ checked Sep 22, 202651-200115 contacts →

Indirect evidence

“More than SDR Outsourcing.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceRemote, United KingdomHQ checked Sep 22, 2026n/a41 contacts →

Indirect evidence

“TrainYo is creating fair opportunities for all in the technology sector We also believe hiring and training is kinda tough!”

Source: RevenueBase Database · checked Sep 22, 2026
5Strong evidenceCity Of London, United KingdomHQ checked Sep 22, 202611-5025 contacts →

Strong evidence

“We’re building the highest-performing outsourced sales development agency in the world - powered by advanced sales intelligence and, above all, by tenacious SDRs who are driven to…”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202651-20024 contacts →

Indirect evidence

“Outbound Partners helps B2B companies generate pipeline through structured outbound.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceCanary Wharf, United KingdomHQ checked Sep 22, 202611-5019 contacts →

Indirect evidence

“At QSL, we don’t just book meetings, we build revenue engines.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 22, 20261-1010 contacts →

Indirect evidence

“Momentum Outbound helps growing SMEs run the operational side of commercial growth.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceOxford, United KingdomHQ checked Sep 22, 20261-108 contacts →

Indirect evidence

“Trueleads builds predictable B2B pipeline through intelligent outbound.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202611-506 contacts →

Indirect evidence

“Gravitas helps technology companies build qualified pipeline through senior SDRs, not junior reps learning on your account.”

Source: RevenueBase Database · checked Sep 22, 2026
11Strong evidenceLondon, United KingdomHQ checked Sep 22, 20261-106 contacts →

Strong evidence

“Britain's Number 1 Sales Development Resource Provider.”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceOldbury, United KingdomHQ checked Sep 22, 20261-105 contacts →

Partial evidence

“Are you confused about what tools and activities will really bring good sales results?”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
14Strong evidenceManchester, United KingdomHQ checked Sep 22, 20261-102 contacts →

Strong evidence

“We are a leading outsourced sales development agency, committed to accelerating business growth and propelling your brand to new heights.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceBerkhamsted, United KingdomHQ checked Sep 22, 20261-102 contacts →

Partial evidence

“On a mission to help SDRs have great sales careers.”

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceLondon, United KingdomHQ checked Sep 22, 20261-102 contacts →

Partial evidence

“We specialise in recruiting high-performing sales professionals for technology companies.”

Source: RevenueBase Database · checked Sep 22, 2026
17Strong evidenceWokingham, United KingdomHQ checked Sep 22, 20261-102 contacts →

Strong evidence

“Achieve UK is a boutique agency specialising in B2B outsourced sales development for SMEs.”

Source: RevenueBase Database · checked Sep 22, 2026
18Strong evidenceEsher, United KingdomHQ checked Sep 22, 20261-101 contacts →

Strong evidence

“In tech sales, SDRs (Sales Development Reps) face big challenges.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 18 of 48 sales development representatives based in the United Kingdom

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Sales development representatives based in the United Kingdom at a glance

As of Sep 22, 2026
31.5%Verified-email coverage
16.7Average contacts per company
1-10Median size (employees)
56.2%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
33
11-50
9
51-200
6

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 48 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sales development representatives, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “sales development representatives”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sales development representatives), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among sales development representatives, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 252 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Sales development representatives by metro

  • Sales development representatives in London27

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sales development representatives, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sales development representatives are there based in the United Kingdom?

RevenueBase identified 48 sales development representatives headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Engagetech, headquartered in London, tops this list with the largest team on record.

Which city has the most sales development representatives?

London leads with 27 headquartered companies, followed by Manchester (4) and Berkhamsted (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 252 verified decision-maker contacts tracked across these 48 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.